US 1639956 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
J. O. NASH Aug. 23, 1927.
2 Sheets-Sheet 1' Filed March 0, 1926 Aug. 23, 1927.
J. O. NASH PUMP Filed March 30, 1.926 2 Sheets-Sheet 2 Patented Aug. 23, 1927.
UNITED STA 1 JAMES O. NASH, F DUKE, OKLAHOMA.
Application filed 80, 1826. Serial No. 98,541.
This invention relates to pumps and has for its object the provision of a strong and durable mechanism whereby the strain upon the motor in operating a pump will be materially-diminished" and so equalized and (11S- tributed that the only work required of the motor will be to lift the weight of the water. The invention is illustrated in the accompanying drawings and will be hereinafter first fully described and then more particularly pointed out in the appended claims.
In the drawings:
Figure 1 is an elevation, with parts broken away and in section, of one embodiment of the invention;
Fig. 2 is a top plan view of thesame;
Fig. 3 is a horizontal section onthe line 3-3 of Fig. 1;
Fi 4 is a view similar to Fig. 1 but showlng another embodiment of the inven-' .tion; I
Fig. 5 is a detail perspective view showing the form of a counterweight and the means for carrying the same;
Fig. 6 is a view in perspective showing the means for connecting the pump rod with the operating lever, the parts being disassembled but approximately in their proper relation.
In the drawin s, the reference numeral 1 indicates a plat orm or well curb or other fixed base or foundation. Secured upon this base are brackets 2 which are also secured to posts 3 which are preferably constructed of wood of suitable dimensions and reinforced by metal facing strips 4, the use of the wood providing the necessary stren th without excessive cost and the meta lic facing strips preventing Warping or twisting of the wooden bodies. These posts are set up at the proper distances apart and preferably in rectangular relation, and to their upper ends are secured cross bars 5 whereby rigidity is imparted to the structure and the posts maintained inthe proper spaced relation, similar cross bars or beams 7 being secured to the posts below the top bars 5 and on the same sides thereof as will be understood. Also secured to the upper ends of the posts and to the cros s bars 5 are filler boards or blocks 8 which have their ends recessed or notched, as shown clearly in Fig. 2, whereby to fit around the posts. The inner longitudinal edges of these filler blocks or beams 8 are spaced apart so as to provide a slot or guideway 9 for the pump rod 10, and facing strips 11 of metal are preferably secured to-the inner opposed faces of the blocks 8, as shown clearly in Fig. 2, to reduce the wear incident to possible contact of the pump rod with the filler blocks. .Spacers 12 are fitted between the ends of the wear strips 11, and the posts, crossbars 5, wear strips 11, filler blocks 8 and spacers 12 are all secured together by the same bolts 13. To further guide the pump rod and minimize the wear upon and by the same, rollers 14: are suitably mounted between and carried by the wear strips 11 and spaced apart such a distance that, while they will guide the pump rod, they will not bear thereon with such force as to interfere with its free operation.
Between the cross bars 7, filler blocks 15, corresponding in all substantial respects to the blocks 8, are secured. A spacer 16 .is provided between the blocks at one side of the framebut at the opposite side these blocks 15 are cut out to define recesses 17 which accommodate the o eratin lever or the link between a pair 0 operating levers in the operation of the pump. The combined width of the recesses 17 is substantial ly equal to the distance between the posts 3, as clearly shown in Fig. 3, and adjacent the said recesses the opposed edges of the blocks 15 are suitably shaped to fit closely around a pump casing 18 and receive wear strips 19 immediately adjacent and at one side of the pump casing, the said wear strips carrying between them rollers 20 of proper diameter to fit readily within the available space and bear against the opposite sides of a second pump rod 21.
In the form of the invention illustrated in Figs. 1 to 3, the mechanism is adapted for operating two reciprocating pumps, one of the pumps drawing water upon the downstroke oft e main driving rod 10 and the other of said pumps drawing water on the up-stroke of the same. The main operating rod 10 is connected directly with the plunger rod 22 working in the pump 18 and, near the lower end of the said main operating bar 10, links 23 are pivotally attached to opposite sides thereof. These links 23 are formed at their lower ends with outturned terminals 24 which are circular in cross secof a counterweight 31, the counterweight,
when used, being secured to the straps by a bolt or other element 32 inserted through the endsof the stra s and the body of the weight as will be un erstood. The described construction provides a very strong apparatus and the parts may be very easily and cheaply procured and assembled. The pump rod 21 is secured to or formed with the plunger rod 33 working in the pump case 34, and to the said rod 21, near the lower end thereof, are pivotally secured links 35 which correspond in all particulars to the links 23 previously described. The links 35 are pivotally engaged in straps 36 secured to the opposite sides of a wooden lever body 37 and project outwardly beyond the outer ends of the said body to engage against the opposite sides of a handle member 38. The lever body 37 is pivotally supported, as at 39, b and between bearing blocks 40 secure to the inner opposed sides of the adjacent posts 3, and a connecting bar or link 41 is provided to connect the inner end portion of the lever 36, 37 with the outer end portion of the lever 26, 27. This connecting bar 41 comprises a. central wooden body having its ends tapered, as shown at 42, whereby it will accommodate the rela-. tive angular positions of the two levers without interfering with the operation of the same, and metallic straps 43 securedto the opposite sides of the said wooden body and projectin beyond the ends of the same to be pivotal y attached to the respective levers, the levers being disposed between the ends 'of the straps 43, as will be understood. The handle member 38 also comprises a Wooden body having reinforcing metallic straps or plates 44 secured to its upper and lower sides and projecting beyond its end to fit over the upper and lower sides of the bar or lever body 37, a bolt 45 being in serted through the ends of the body 37 and the straps 44 to secure the parts together. It will thus be seen that relative movement between the handle and the lever will be prevented but the handle member may be easily removed when its use is not desired so that space may be saved in crating the parts for transportation or for storage.
It is to be understood that the handle member 38 is provided in order that the pump may be manually operated when desired, but it is intended that the pumps be operated by a power motor, as a wind wheel having its pitman or driving rod connected to the main driving or pump rod 16. The pump may be driven by a steam or other engine, the pump jack for operating with the engine being connected to the lever 37 by a pivot bolt inserted through the open-. ing 451 and the handle 38 being preferably removed. The pivot 39 is locatedequidistant from the opening 451 and the trunnions of the links 35, thus giving an engine the. same-power and practically the same stroke that it would have if connected directly to the pump rod 10 or 21, as is now generally done. When the invention is ap plied to two pumps, as shown in Fig. 1, the plungers and pump rods of the two pumps will counterbalance each other so that the strain upon the wind wheel in this respect will be equalized and so distributed that the wind wheel will be called upon merely to overcome the weight of the portion of water which is to be raised. The two levers and the intermediate connecting bar serve to transmit the motion of the main driving rod from the main pump to the second pump so that the two plungers will move in opposite directions at all times. In this embodiment of the invention, the counterweight is unnecessary.
In Fig. 4, I have illustrated the inven tion applied to a single ump 46. The supporting frame, indicated by the numeral 47, corresponds in all respects to the supporting frame previously described and shown in Figs. 1, 2 and 3. The main driving rod 48 is formed with ortconnected directl to the plunger rod 49 of the pump and carries links 50 which are identical with the links 23 and 35. A lever 51, which corresponds with the lever 26, 27 first described, is fulcrumed at 52 upon the supporting structure and has its inner end pivotally engaged with the links 50, while 'its outer end carries the counterweight 30. Below the lever 51, a lever 54 is pivotally mounted upon the supporting structure, and this lever 54 may be the working portion of the lever 36, 37, but the fulcrum 55 is disposed nearer the inner edges of the posts 3 than is the fulcrum 39, as will be noted upon comparison of Fig. 1 with Fig. 4 of the drawings. The connecting bar 56 is like the connecting bar 41 in construction and is 'pivotedat its upper end to the lever 51 near the outer end thereof and at its lower end to the lever member 54. In this form of the invention, the counterweight should balance the weight of all the parts of the o erating mechanism, and it will, of course, e noted that the lever 54 is merely provided to facilitate the attachment of a handle member correspondin to the handle member 38 when it is desired to operate the pump manually, the levers 51 and 54 moving in the same direction at all times instead of in opposite directions as do the levers in the first described form. In this arrangement, the pivots 52 and 55 are in the same vertical plane and the distance between the pivot 52 and the pivot 53 is the same as the distance between the pivot 53 and the pivot 57 the levers 51 and 54 being parallel at all times so that the exact stroke of thedriving agent will be imparted to the pump rod. To drive this form of the invention by an engine, the pump jack of the engine is connected to the lever 54 and the bar 56 by the pivot bolt 57. If a very tall jack be employed, it may be connected to the lever 51 at the pivot 53, although the distance to such connection is greater than is usually deemed desirable. When operating with a wind wheel, thepitman of the wind wheel is connected directly to the driving rod 48, and the lever 54 and connecting bar 56 may be omitted. The counterweight, when operating by a wind wheel, may be slightly less than the weight of the plunger and the pump rod so that the wind wheel will not be required to force the latter on the down stroke.
.l't will be readily noted from the foregoing description, taken in connection with the accompanying drawings, that I have provided a very simple and compact pumping mechanism whereby the strain will be minimized so that the driving force will be more, effectually utilized than heretofore and the water drawn from a deep well more rapidly and easily than has heretofore been done, lln the first described form of the invention, water may be delivered at the mouth of the well in a continuous stream with no greater expenditure of force than has heretofore been necessary to deliver an intermittent stream from a single pump.
Having thus described the invention, I claim:
1. In a pumping mechanism, the combination of a plurality of posts, metallic facing strips secured along the said posts, cross bars connecting'the posts at their upper ends and at points below their upper ends, tiller blocks secured to the inner opposed faces of said cross bars andthe osts and having their inner longitudinal e ges spaced apart to detine guiding slots, a pump rod mounted to reciprocate through the said guiding slots, and a lever fulcrumed upon the posts at one side of the pump rod and connected at its inner end with the pump rod.
2. In a pumping mechanism, the combination of posts, cross bars, connecting the posts, filler blocks secured to the cross bars and the posts and fitting between the posts, Wear strips provided onthe inner opposed longitudinal edges of the tiller blocks, guiding elements carried by said strips, a pump rod working in the space between the wear strips and engaging between said guiding elements, and a lever fulcrumed upon the posts between the upper and lower cross bars andhaving its inner end operatively connected with the pump rod.
3. In a pumping mechanism, the combination of a supporting structure, a pump rod mounted for reciprocation therein, a lever fulcrumed between its ends directly upon the supporting structure and having its inner end operatively connected with the pump rod, a second lever fulcrumed directly upon the supporting structure below the first-mentioned lever, and a connecting bar extending between and pivoted to the two levers.
4. In a pumping mechanism, the combination of a supporting structure, a pump rod mounted in the supporting structure for vertical reciprocation, a lever fulcrumed upon the supporting structure at one side of the pumprod, and links pivoted at their upper ends to the opposite sides of the pump rod and provided at their lower ends with outturned trunnions pivotally engaged in the end of the lever.
5. In a pumping mechanism, the combination or a supporting structure, a pair of pumps disposed within the supporting structure, pump rods working in the respective pumps and guided by the supporting structure, a lever fulcrumed between its ends directly upon the supporting structure in the upper portion of the same, links connecting the innerend of said lever with one pump rod, a second lever fulcrumed directly upon the supporting structure below the first-mentioned lever, li ks connecting the inner end of the secondentioned lever with the sec- 0nd pump rod, and a connecting bar extend in between the levers andhaving its upper en l pivoted to the upper lever at the outer side of the fulcrum thereof and its lower end pivoted to the lower lever at the inner side of the fulcrum of the same.
In testimony whereof I aflix my signature.
JAMES O. NASH. [1,. s.]